Case 821C Wheel Loader – Parts, Specs

Description:

Serial Number Location:

For Case 821C models (produced from 1999 to 2005), the serial number plate is typically located on the left side of the machine frame near the articulation joint or beneath the cab platform. Always verify the serial number before ordering parts, as this model includes upgrades in emissions, cab design, and transmission control compared to earlier models.

Key Specifications

Years Manufactured: 1999 – 2005

Engine Model: Cummins 6CTAA8.3 turbocharged aftercooled diesel

Net Horsepower: 200 HP @ 2,200 rpm

Displacement: 504 cu in (8.3 L)

Transmission Type: 4-speed powershift with electronic modulation

Hydraulic Flow Rate: 45 gal/min

Hydraulic Pressure: 3,000 psi

Operating Weight: Approx. 34,400 – 35,200 lbs

Bucket Capacity: 3.5 – 4.0 cubic yards

Breakout Force: 35,000 – 36,500 lbs

Top Travel Speed: Up to 23.5 mph

Dimensions (L×W×H): Approx. 28.7 ft × 9 ft × 11.3 ft

Performance & Design Highlights

Aftercooled Cummins Engine: The 821C introduced the 6CTAA8.3 engine for improved performance in hot or high-altitude environments with better fuel combustion and torque delivery.

Electronic Transmission Control: 4-speed powershift with shift modulation allows smoother gear changes and reduced driveline stress under load.

Improved Cooling System: Larger radiator and mid-mounted cooling module reduce engine temps and help with hydraulic system longevity.

Cab Comfort Upgrades: Pressurized cab with suspension seat, improved air flow, better isolation from vibration, and digital monitoring display.

Loader Arm Strength: The 821C maintains a Z-bar linkage with upgraded pins and high-lift arm options for extended dump height.

Routine Maintenance

• Engine Oil & Filter: Replace every 250 hours

• Hydraulic Oil & Filters: Change every 1,000 hours

• Transmission Fluid & Filter: Replace every 1,000 hours

• Fuel Filters: Replace every 250 hours

• Air Filters: Inspect every 100 hours; replace when needed

• Cooling System: Flush every 2,000 hours or annually in dusty conditions

• Brake System: Inspect every 500 hours; replace oil every 1,000 hours

Common Issues & Fixes

Transmission Not Shifting Smoothly: Caused by faulty shift solenoids or dirty modulation valves—test electronically and replace as needed.

Hydraulic Cylinder Leaks: Worn seals or scored rods on tilt/lift cylinders—rebuild with OEM seal kits for long-lasting results.

Engine Surge at Idle: Often caused by weak fuel return check valve or worn injectors—replace components and recalibrate if needed.

Cab HVAC Failure: Check for blower motor wear or clogged cab filter—clean ducts and replace filter regularly.

Articulation Joint Looseness: Worn pins or dry bushings—inspect grease paths and replace articulation pin kits to prevent further wear.

DEF Not Applicable: The 821C is Tier 2 and does not require DEF (Diesel Exhaust Fluid), simplifying maintenance compared to later models.